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应用程序关闭时,广播接收器和服务不起作用(android)

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每个人都有 . 首先,由于AUTO START MANAGER,在我的设备上关闭应用程序时,我的接收器无法工作 . 我感到愚蠢......当我试图解决它时,我学到了非常重要的东西 .

首先是Android 6.0权限请求Broadcast Receivers not working in Android 6.0 Marshmallow

其次:Android - Lollipop上的重复电话状态广播

http://www.skoumal.net/en/android-duplicated-phone-state-broadcast-on-lollipop/

谢谢...

我是Android的新手,我想学习BroadcastReceiver&Service . 这个代码BroadcastReceiver监听摘机和闲置状态我的手机和发送意图服务做的事情 . 虽然应用程序运行正常 . 关闭应用程序后,BroadcastReceiver和Service不起作用 .

更新:我还注意到应用程序运行和每个正常情况下,服务启动两次并停止两次 .

服务启动时我看到了这条消息:

  • Toast.makeText(context,“”phoneState“”record,Toast.LENGTH_SHORT).show();

  • Toast.makeText(getApplicationContext(),“service work”,Toast.LENGTH_SHORT).show();

再次1. Toast.makeText(context,“”phoneState“”record,Toast.LENGTH_SHORT).show();

再次2. Toast.makeText(getApplicationContext(),“service work”,Toast.LENGTH_SHORT).show()

服务停止时我看到这些消息:

  • Toast.makeText(context,“”phoneState“”record,Toast.LENGTH_SHORT).show();

  • Toast.makeText(getApplicationContext(),“服务将被停止 . ”,Toast.LENGTH_SHORT) . show();

再次1. Toast.makeText(context,“”phoneState“”record,Toast.LENGTH_SHORT).show();

再次2. Toast.makeText(getApplicationContext(),“服务将被停止 . ”,Toast.LENGTH_SHORT) . show();

一切都重复 .

表现:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="devapp.deneme">

    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:enabled="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <service
            android:name=".MyService"
            android:enabled="true"
            android:exported="true" />

        <receiver
            android:name="devapp.deneme.MyReceiver"
            android:enabled="true"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.NEW_OUTGOING_CALL"/>
                <action android:name="android.intent.action.PHONE_STATE"/>
            </intent-filter>
        </receiver>
    </application>

</manifest>

广播接收器

package devapp.deneme;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.widget.Toast;

public class MyReceiver extends BroadcastReceiver {

    public MyReceiver(){

    }

    Intent service = null;
    Bundle bundle = null;
    String phoneState = null;
    boolean record = false;

    @Override
    public void onReceive(Context context, Intent intent) {

        service = new Intent(context, MyService.class);
        bundle = intent.getExtras();
        phoneState = bundle.getString(TelephonyManager.EXTRA_STATE);

        if (phoneState!=null){
            if ((phoneState.equals(TelephonyManager.EXTRA_STATE_OFFHOOK))||(phoneState.equals(TelephonyManager.EXTRA_STATE_IDLE))){
                service.putExtra("durum", phoneState);
                if (phoneState.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {
                    record = true;
                }
                else {
                    record = false;
                }
            }
            service.putExtra("record",record);
            Toast.makeText(context, "" +phoneState +" " +record, Toast.LENGTH_SHORT).show();
            context.startService(service);
        }
    }
}

服务

package devapp.deneme;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.widget.Toast;

public class MyService extends Service {
    public MyService() {
    }

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    public int onStartCommand (Intent intent, int flags, int startId){

        boolean record = intent.getBooleanExtra("record", false);
        if (record) {
            Toast.makeText(getApplicationContext(), "service work", Toast.LENGTH_SHORT).show();
        }
        else {
            Toast.makeText(getApplicationContext(), "service will be stopped.", Toast.LENGTH_SHORT).show();
            stopSelf();
        }
        return super.onStartCommand(intent, flags, startId);
    }
}

2 回答

  • 1

    您必须在服务类中添加以下内容

    @Override
        public int onStartCommand(Intent intent, int flags, int startId) {
    
               // your business logic 
    
            return START_STICKY;
    }
    
  • 1

    以粘性方式启动服务 . 更改您的 onStartCommand 服务方法,如下所示

    public int onStartCommand (Intent intent, int flags, int startId){
    
        boolean record = intent.getBooleanExtra("record", false);
        if (record) {
            Toast.makeText(getApplicationContext(), "service work", Toast.LENGTH_SHORT).show();
        }
        else {
            Toast.makeText(getApplicationContext(), "service will be stopped.", Toast.LENGTH_SHORT).show();
            stopSelf();
        }
         return START_STICKY;  // or START_REDELIVER_INTENT or START_STICKY_COMPATIBILITY
    }
    

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